This 700-year-old street food market features baby octopus and soy donuts.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

This mine is home to the largest man-made hole in Europe.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

A giant bug impaled on a 75-foot-tall needle.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

Rare karst landscape eroded from a flat seabed.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

It's always summer at the beach inside this former airship hangar.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

A hundred copies of Antony Gormley's naked body stare out across the water.